Brief description of your issue

When an MSIXBundle or a ZIP contains multiple installers, wingetcreate is unable to update it and fails with The number of installers must match existing installers. This is because in the following code snippet:

numOfNewInstallers will include all the nested installers inside the msixbundle / ZIP and the condition if (numOfNewInstallers != existingInstallers.Count) will return true throwing the exception with the above quoted message.

Logic needs to be added to match only a single suitable installer from msix / ZIP.

Steps to reproduce

Try to update packages with msixbundles, zip that contain multiple installers within. Examples listed below:

Using an arbitrary version and old urls to simulate an update scenario

1. Microsoft.WingetCreate
(Resolved, see comment below)

2. Microsoft.WindowsTerminal
(Resolved, see comment below)

3. Microsoft.Sysinternals.ZoomIt

wingetcreate update Microsoft.Sysinternals.ZoomIt --version 15.0 --urls "https://download.sysinternals.com/files/ZoomIt.zip|x64" "https://download.sysinternals.com/files/ZoomIt.zip|x86" "https://download.sysinternals.com/files/ZoomIt.zip|arm64"

4. orhun.git-cliff

wingetcreate update orhun.git-cliff --version 2.3.6 --urls "https://github.com/orhun/git-cliff/releases/download/v2.1.1/git-cliff-2.1.1-i686-pc-windows-msvc.zip" "https://github.com/orhun/git-cliff/releases/download/v2.1.1/git-cliff-2.1.1-aarch64-pc-windows-msvc.zip" "https://github.com/orhun/git-cliff/releases/download/v2.1.1/git-cliff-2.1.1-x86_64-pc-windows-msvc.zip"

5. sirredbeard.wslinternals

wingetcreate update sirredbeard.wslinternals --version 0.0.15 --urls "https://github.com/sirredbeard/wslinternals/releases/download/0.0.14/0.0.14.zip|x86" 

6. Google.PlatformTools

wingetcreate update Google.PlatformTools -v 35.0.1 --urls "https://dl.google.com/android/repository/platform-tools-latest-windows.zip"

7. Oven-sh.Bun

wingetcreate update Oven-sh.Bun --version 1.1.1 --urls https://github.com/oven-sh/bun/releases/download/bun-v1.1.1/bun-windows-x64.zip

This also occurs in interactive update scenarios.

Expected behavior

Package updates successfully as number of URLs matches the number of installer nodes in the manifest

Actual behavior

wingetcreate fails with:

The number of new installer packages must match the number of existing installer packages.

Environment

Windows Package Manager Manifest Creator v1.2.6.0